Bead
Briolette
Bullet
Cushion
Emerald
Epaulet
Fancy
Half Moon
Heart
Kite
Marquise
Oval
Pear
Princess
Radiant
Round
Slice
Square
Straight Baguette
Tapered Baguette
Trapezoid
Triangular
Trillion
Colorstone shape
Round |
Princess |
Emerald |
Asscher |
Cushion |
Marquise |
Radiant |
Oval |
Pear |
Heart |
Half Moon |
Kite |
Straight
Baguette |
Tapered
Baguette |
Trapezoid |
Triangle |
Trillion |
Briolette |
Rough |
Bead |
Slice |
Bullet |
Square |
Quality
- AAA
AAA: AAA are top-quality gems with excellent coloring, brilliance, and cut/polish. These stones are eyeclean with the exception of emerald, which is by its nature very rarely found without inclusions.
- AA
AA: AA quality gemstones are very well cut, with lively brilliance and very good polish. They are less vibrant in color and may have slight to moderate inclusions.
- A
A: Somewhat less saturated than AA quality stones and may have moderate to heavy inclusions.
- Commercial
Commercial: Stones may have light coloring or color zoning, heavy inclusions, or other qualities that negatively affect the stone's appearance.
AAA: AAA are the top-quality gems with excellent coloring, brilliance, and cut/polish. These stones are eyeclean with the exception of emerald, which is by its nature very rarely found without inclusions.
Quality
- AAA
AAA: AAA are top-quality gems with excellent coloring, brilliance, and cut/polish. These stones are eyeclean with the exception of emerald, which is by its nature very rarely found without inclusions.
- AA
AA: AA quality gemstones are very well cut, with lively brilliance and very good polish. They are less vibrant in color and may have slight to moderate inclusions.
- A
A: Somewhat less saturated than AA quality stones and may have moderate to heavy inclusions.
- Commercial
Commercial: Stones may have light coloring or color zoning, heavy inclusions, or other qualities that negatively affect the stone's appearance.
AAA: AAA are the top-quality gems with excellent coloring, brilliance, and cut/polish. These stones are eyeclean with the exception of emerald, which is by its nature very rarely found without inclusions.
Stone Type
The name used to identify a type of gemstone, which each having their own origin, coloring, and other definitive characteristics.
Primary Color
Red: Ruby, Rubellite, Red Spinel
Blue: Sapphire, Blue Topaz, Aquamarine
Green: Emerald, Tsavorite, Green Tourmaline
Yellow: Yellow Sapphire, Andulusite, Chrysoberyl Cat's Eye
Orange: Citrine, Orange Sapphire, Spessartite Garnet
Peach: Morganite, Peach Sapphire, Padparadscha Sapphire
Pink: Rhodolite, Pink Sapphire, Kunzite, Pink Tourmaline
Purple: Amethyst, Iolite, Lavender Spinel
Brown: Smoky Quartz, Bronzite
Black: Black Sapphire, Black Onyx
Gray: Moonstone
White/Colorless: White Topaz, White Sapphire, White Spinel
Multi: Ametrine, Watermelon Tourmaline, Opal
- Other
Other
Red:Ruby, Rubellite, Red Spinel
Avg. Carat Weight(ct):
With parcels of many stones, this measure gives a good estimate for the size of an individual stone in the lot.
Quantity
The amount of stones available for this listing. For shopping purposes, a listing for multiple stones in a parcel will show average attributes (like carat weight, length, and width) which may vary slightly from stone to stone.
Treatment
- (H) Heating
Heating: The stone has been treated with high heat to enhance or change its color. This technique is permanent and is used on a large amount of fine quality gems.
- (O) Oil/Resin Filling
Oiling/Resin: Typically used for emeralds, oiling and resin filling helps to minimize the appearance of cracks and enhances the stone's liveliness.
- (R) Irradiation
Irradiation: Irradiation has been used to deepen or change a stone's color entirely. The treatment is stable and permanent.
(H) Heating: The stone has been treated with high heat to enhance or change its color. This technique is permanent and is used on a large amount of fine quality gems.
Quality
- AAA
AAA: AAA are top-quality gems with excellent coloring, brilliance, and cut/polish. These stones are eyeclean with the exception of emerald, which is by its nature very rarely found without inclusions.
- AA
AA: AA quality gemstones are very well cut, with lively brilliance and very good polish. They are less vibrant in color and may have slight to moderate inclusions.
- A
A: Somewhat less saturated than AA quality stones and may have moderate to heavy inclusions.
- Commercial
Commercial: Stones may have light coloring or color zoning, heavy inclusions, or other qualities that negatively affect the stone's appearance.
AAA: AAA are the top-quality gems with excellent coloring, brilliance, and cut/polish. These stones are eyeclean with the exception of emerald, which is by its nature very rarely found without inclusions.
Cut
- Buff Top
Buff Top: A stone that is faceted along the pavilion and polished with a dome on top, not unlike a cabochon.
- Cabochon
Cabochon: A stone with a flat bottom and domed, smoothly polished top. This is typically used for opaque or translucent stones and stones with patterns of color, like opal.
- Center Drilled
Center Drilled: Used on stones so they can be strung as beads.
- Checkerboard
Checkerboard: A cutting technique that creates diamond shaped facets along the stone's top and sides to create a checked pattern.
- Diamond Cut
Diamond Cut: The stone is cut similarly to a diamond brilliant cut to maximize its sparkle.
- Faceted
Faceted: A technique to give the stone brilliance by cutting flat sides into the stone to reflect light. Most finish gemstones are faceted based on specifically developed faceting diagrams given the stone's final shape.
- Fantasy
Fantasy: A departure from traditional faceting, fantasy cut stones employ artistic grooves, optic dishes, and concave facets to create a unique final look for the stone.
Buff Top: A stone that is faceted along the pavilion and polished with a dome on top, not unlike a cabochon.
Certificate
A gemstone certificate, also known as a grading report, is issued by an accredited independent gemological laboratory. In addition to the gem's carat weight and measurements, a certificate includes grades for the stones's color, clarity, and origins.
Price
The total price of the stone found by multiplying the price per carat by the total carat weight.
Length
The measure of the longest side of the stone in millimeters.
Width
The widest point along the short side, in millimeters.
Precious
Traditionally, "precious" referred to four select gems as the rarest and most valuable stones in the world: diamond, ruby, emerald, and sapphire. However, in recent decades equally rare and beautiful stones have been added to this family, namely Tanzanite and Alexandrite.
Semi Precious
A category used to describe stones outside of the rarest and most valuable precious stones. Gems in this category range from agate and quartz variants to jade, aquamarine, and more.
Birthstone
A stone ascribed to those born in a particular month of the year that is said to bring good fortune to the wearer. Mothers will also often wear the birthstone of their children or grandchildren.
Birthstones by Month
- January: Garnet
- July: Ruby
- February: Amethyst
- August: Peridot
- March: Aquamarine
- September: Sapphire
- April: Diamond
- October: Tourmaline, Opal
- May: Emerald
- November: Citrine
- June: Pearl, Alexandrite, Moonstone
- December: Blue Topaz, Tanzanite, Turquoise
Anniversary
Like the paper, china, or silver anniversary many are familiar with, anniversary stones give a theme for a gift for each anniversary year.
Stones by Anniversary Year
- 1st: Gold
- 2nd: Garnet
- 3rd: Pearl
- 4th: Blue Topaz
- 5th: Sapphire
- 6th: Amethyst
- 7th: Onyx
- 8th: Tourmaline, Tanzanite
- 9th: Lapis Lazuli
- 10th: Diamond
- 11th: Turquoise
- 12th: Jade, Opal
- 13th: Citrine
- 14th: Opal
- 15th: Ruby, Alexandrite
- 16th: Peridot
- 17th: Carnelian
- 18th: Cat's Eye
- 19th: Aquamarine
- 20th: Emerald
- 21st: Iolite
- 22nd: Spinel
- 23rd: Imperial Topaz
- 24th: Tanzanite
- 25th: Silver Jubilee
- 30th: Pearl Jubilee
- 35th: Emerald
- 40th: Ruby
- 45th: Sapphire
- 50th: Golden Jubilee
- 55th: Alexandrite
- 60th: Diamond Jubilee
Rare & Unusual
Gems in this category are unconventional or little-known compared to traditional stones. Pieces in this category are good choices for unique finished pieces.
Lot Details
Whether this listing is available as a single stone, matched pair, or as part of a parcel of similar and/or matching stones.
Origin
The region or country from which the stone was mined. Many of the highest-quality materials are only found in a few select mines and are often famous for them; ex. "Ceylon" (Sri Lanka) sapphire, "Lightning Ridge" (Australia) black opal, or "Burmese" (Myanmar) ruby.
Clarity
- Clean
Clean: No internal or external characteristics. Extremely rare.
- Slightly Included
Slightly Included: Characteristics miniscule and difficult to see. These stones are typically 100% eyeclean.
- Moderately Included
Moderately Included: Characteristics somewhat visible to the naked eye. These stones may not be eyeclean.
- Heavily Included
Heavily Included: Characteristics visible to the naked eye that may affect luster and opacity. These stones are not typically eyeclean.
Clean: No internal or external characteristics. Extremely rare.
Eye Clean
A description of whether or not inclusions can be seen with the naked eye, expressed as 100% eyeclean, 90% eyeclean, or not eyeclean. 100% eyeclean means that inclusion(s) cannot be seen with the naked eye even after they have been located with a loupe. 90% eyeclean means the inclusion(s) are generally not seen by the naked eye and can be seen only after first locating them under a loupe.
Color Intensity
A subjective description of the stone's specific coloring within its color family: a sapphire, for example, may be in the blue color family but could have a color intensity of "dark royal blue" or "medium cornflower blue", among others.
Stone Description
AGI's final take on the stone. AGI graders have gone the extra mile to thoroughly grade every gemstone to give a professional opinion on the overall aesthetics of the stone including luster, cut quality, and face up coloring.
Quality
- AAA
AAA: AAA are top-quality gems with excellent coloring, brilliance, and cut/polish. These stones are eyeclean with the exception of emerald, which is by its nature very rarely found without inclusions.
- AA
AA: AA quality gemstones are very well cut, with lively brilliance and very good polish. They are less vibrant in color and may have slight to moderate inclusions.
- A
A: Somewhat less saturated than AA quality stones and may have moderate to heavy inclusions.
- Commercial
Commercial: Stones may have light coloring or color zoning, heavy inclusions, or other qualities that negatively affect the stone's appearance.
AAA: AAA are the top-quality gems with excellent coloring, brilliance, and cut/polish. These stones are eyeclean with the exception of emerald, which is by its nature very rarely found without inclusions.
Availability
The number of stones available in this listing.
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